542621707126244 has 12 divisors (see below), whose sum is σ = 949623530121084. Its totient is φ = 271300698520224.

The previous prime is 542621707126237. The next prime is 542621707126313. The reversal of 542621707126244 is 442621707126245.

It can be written as a sum of positive squares in 2 ways, for example, as 354457058620900 + 188164648505344 = 18827030^2 + 13717312^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2538640499 + ... + 2538854234.

It is an arithmetic number, because the mean of its divisors is an integer number (79135294176757).

Almost surely, 2^{542621707126244} is an apocalyptic number.

It is an amenable number.

542621707126244 is a deficient number, since it is larger than the sum of its proper divisors (407001822994840).

542621707126244 is a wasteful number, since it uses less digits than its factorization.

542621707126244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5077521454 (or 5077521452 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 53.

Subtracting from 542621707126244 its reverse (442621707126245), we obtain a palindrome (99999999999999).

The spelling of 542621707126244 in words is "five hundred forty-two trillion, six hundred twenty-one billion, seven hundred seven million, one hundred twenty-six thousand, two hundred forty-four".